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<h2 title="Interface CompilerOptions.AliasTransformationHandler" class="title">Interface CompilerOptions.AliasTransformationHandler</h2>
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<pre>public static interface <span class="strong">CompilerOptions.AliasTransformationHandler</span></pre>
<div class="block">A Role Specific Interface for JS Compiler that represents a data holder
 object which is used to store goog.scope alias code changes to code made
 during a compile. There is no guarantee that individual alias changes are
 invoked in the order they occur during compilation, so implementations
 should not assume any relevance to the order changes arrive.
 <p>
 Calls to the mutators are expected to resolve very quickly, so
 implementations should not perform expensive operations in the mutator
 methods.</div>
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<td class="colFirst"><code><a href="../../../../com/google/javascript/jscomp/CompilerOptions.AliasTransformation.html" title="interface in com.google.javascript.jscomp">CompilerOptions.AliasTransformation</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/google/javascript/jscomp/CompilerOptions.AliasTransformationHandler.html#logAliasTransformation(java.lang.String, com.google.javascript.rhino.SourcePosition)">logAliasTransformation</a></strong>(java.lang.String&nbsp;sourceFile,
                      <a href="../../../../com/google/javascript/rhino/SourcePosition.html" title="class in com.google.javascript.rhino">SourcePosition</a>&lt;<a href="../../../../com/google/javascript/jscomp/CompilerOptions.AliasTransformation.html" title="interface in com.google.javascript.jscomp">CompilerOptions.AliasTransformation</a>&gt;&nbsp;position)</code>
<div class="block">Builds an AliasTransformation implementation and returns it to the
 caller.</div>
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<h4>logAliasTransformation</h4>
<pre><a href="../../../../com/google/javascript/jscomp/CompilerOptions.AliasTransformation.html" title="interface in com.google.javascript.jscomp">CompilerOptions.AliasTransformation</a>&nbsp;logAliasTransformation(java.lang.String&nbsp;sourceFile,
                                                         <a href="../../../../com/google/javascript/rhino/SourcePosition.html" title="class in com.google.javascript.rhino">SourcePosition</a>&lt;<a href="../../../../com/google/javascript/jscomp/CompilerOptions.AliasTransformation.html" title="interface in com.google.javascript.jscomp">CompilerOptions.AliasTransformation</a>&gt;&nbsp;position)</pre>
<div class="block">Builds an AliasTransformation implementation and returns it to the
 caller.
 <p>
 Callers are allowed to request multiple AliasTransformation instances for
 the same file, though it is expected that the first and last char values
 for multiple instances will not overlap.
 <p>
 This method is expected to have a side-effect of storing off the created
 AliasTransformation, which guarantees that invokers of this interface
 cannot leak AliasTransformation to this implementation that the
 implementor did not create</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>sourceFile</code> - the source file the aliases re contained in.</dd><dd><code>position</code> - the region of the source file associated with the
        goog.scope call. The item of the SourcePosition is the returned
        AliasTransformation</dd></dl>
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